Actually, he showed again why he isn't ready to start a game. He is still struggling processing the speed of the NFL game, and he'll struggle even more when the regular season starts. Right now, most NFL teams aren't showing a lot, or at least not all of their packages. Veteran players also hold back because its the preseason, not the regular season. But on Sept. 7 the intensity gets turned up a notch. Flacco isn't ready for that.